module('spritebatch')
module('camera')
module('color')
module('text')
module('screen')
module('time')
module('glm')

screenSetBackground(colorBlack())
camera = cameraCreate(CAMERA_PROJECTION_TYPE_ORTHOGRAPHIC)

text = "Hello World"

function sceneDispose()
end

function sceneUpdate()
end

function sceneRender()
  -- UI Test
  cameraPushMatrix(camera)
  camera.bottom = screenGetHeight()
  camera.right = screenGetWidth()

  width, height = textMeasure(text)
  x = (screenGetWidth() - width)
  x = math.sin(TIME.time * 2) * (x / 2) + (x / 2)
  y = (screenGetHeight() - height) / 2
  y = math.cos(TIME.time * 3) * (y) + (y)

  -- For each letter
  for i = 1, #text do
    letter = text:sub(i, i)
    letterWidth, _ = textMeasure(letter)

    -- Draw letter with rainbow color
    textDraw(x, y, letter, colorRainbow((i - 1) * 0.1, 8))
    x = x + letterWidth
  end

  cameraPopMatrix()
end